303761-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303761-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,7,6 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 303761-31:
(8*3)+(7*0)+(6*3)+(5*7)+(4*6)+(3*1)+(2*3)+(1*1)=111
111 % 10 = 1
So 303761-31-1 is a valid CAS Registry Number.